1929397142 has 32 divisors (see below), whose sum is σ = 3089253600. Its totient is φ = 901152000.

The previous prime is 1929397117. The next prime is 1929397163. The reversal of 1929397142 is 2417939291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1077584 + ... + 1079372.

It is an arithmetic number, because the mean of its divisors is an integer number (96539175).

Almost surely, 2^1929397142 is an apocalyptic number.

1929397142 is a deficient number, since it is larger than the sum of its proper divisors (1159856458).

1929397142 is a wasteful number, since it uses less digits than its factorization.

1929397142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192.

The product of its digits is 244944, while the sum is 47.

The square root of 1929397142 is about 43924.9034375717. The cubic root of 1929397142 is about 1244.9174188651.

The spelling of 1929397142 in words is "one billion, nine hundred twenty-nine million, three hundred ninety-seven thousand, one hundred forty-two".